Mechanism for sewing on buttons



(N M d. 1.)

0 e L. J. DRISOOLL.

MECHANISM FOR SEWING 0N BUTTONS.

No. 309,210. Patented Dec. 16, 1884.

x :1. I 5 %1 K V r k my .70 1 '5. 1n 1 +1 m "51B 2 2 20 a Y J fly .Wikq I'5E-E. I V hill.

Urvirnn fira'rns Parent @rrrca LAXVREXCE J. DRISCOLL, OF SOMERVILLE, MASSACHUSETTS.

MECHANISM FOR SEWlNG ON BUTTONS.

EFECATIOISI forming part of Letters Patent No.309,210, dated December 16, 1884.

(No model.)

To all whom it may concern:

Be it known that I, LAWRENCE J. DRISCOLL, of Somerville, county of Middlcsex, State of Massachusetts, have invented an Improvement in Mechanism for Sewing Buttons on Fabrics, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention is an improvement upon that described in application No. 114,171, filed December 11, 1883, and to which reference may be had. In that application the button is shown as placed under and between the prongs of a button-centering device, and the fabric to which the button is to be secured is laid upon the buttoircentering device, and is held down upon the said centering device by a presser-ioot, which latter is permitted to vibrate with the centering device as it moves the button over the cloth-plate, which latter is stationary. In this my present invention I have constructed a button-centering device which is adapted to receive the button, and to be lowered to place the rear side of the button against the cloth, resting on a plate placed above the bed-plate of the machine, and hav ing an opening for the passage of the needle. The centering device herein shown is composed of a block provided with a spring, and a connected base-plate provided with a central opening, the button being held between the said spring and block, while the cloth or ma terial is held between the said spring and the base-plate, the said centering device being so pivoted that it may be vibrated, to place first one andthen another eye of the button under the descending needle, and the block of the centering device is connected by a suitable joint with the presser-bar, so that the usual spring which holds it down is also made available to hold and bear the block and the button under it down upon the fabric or other material interposed between the spring attached to the said block and the upper side of the base-plate of the centering device,which base-plate'rests close to and moves over the surface of the usual cloth or bed plate of the machine above the needle-hole. The block is made detachable from the rest of the centering device to enable other blocks of different size to be employed, according to the size of the button being used.

Figure l is a top view of a sufficient portion of a sewing-machine which, taken in connection with the application referred to, will enable one conversant with sewing mechanism to understand my invention; Fig. 2, a partial section in the line a; a", Fig. 1; Fig. 3, a detail to be referred to, and Fig. & an under side view of the button-centering device.

The bed-plate A the connecting-rod m", and the presser-bar B, lug m, adjustable arm in", having a fulcrum-pin, m, and link 0, and means for moving and for holding the same are and will be as in my said application, wherein like parts are designated by like letters.

The button-centering device is composed of the following partsviz., block 2, spring 8, rod 5, standard 9, and plate 10. The forked spring 3 is riveted or otherwise attached to the said block. The block 2 is secured to a head-piece, at, of a rod, 5, by a screw, 6, and the head-piece, as herein shown, is jointed by link 7 with the usual presser-bar, B, which in practice is substantially such as employed in the Wheeler & XVilson machine No. 10. This rod is adjustably held by screw Sin a standard, 9, having attached to it by screw 12 the plate or under member, 10, of the centering device, the said plate being preferably made as a thin steel plate extended forward beyond and under the needle, and provided with a large opening, a, for the passage of the needle, as shown in Fig. 4, the opening being of greater diameter than the greatest distance between any two eyes of any button to be stitched fast. This under plate also has a center hole, 13, which receives the fulcrum pin m of the arm at, referred to. As the connecting-rod is moved longitudinally, as described in my application referred to, it, through the clamping-block 16, adj ustably attached to the rod 5, causes the said centering device to be vibrated after each rise of the needle 17 and needle-bar 18, to thus place one and then another eye of the button 20 under the said needle. Then the button has four eyes, the arm on will be moved by the link 0, and by other devices connected therewith, as described in my said application. After two holes of the button have been filled with thread, the button-centering 1 rod, the standard 9, and the connected plate device, owing to the link 7 betweenthe block 2 and the presser-bar B, may be freely moved forward in unison with the arm an to provide for placing under the needle the two holes.

of the button next to be entered by the needle. Lifting the pressenbar in the usual manner lifts the block which receives the button, so that the fabric or material upon which the button is to be secured may be placed between the spring attached to the block and the upper side of the base-plate of the buttoncenteriug device.

I claim The presser-bar and the button-centering device, composed of the block, the spring, the

10, provided with an opening and adapted to be pivoted with relation to the bed-plate, combined with a pivot for the said centering device, a link to connect the button-centering device with the presser-bar, and with a n10vable connecting-rod to vibrate the said buttoncentering device, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LAJVBENGE J. DRISCOLL.

Vitnesses:

G. XV. GREGORY, \V. H. SIGSTON. 

